Meet the WiCub: a battery powered device that measures temperature and humidity 247/7 and sends the data to your e-mail. It is accurate to 0.3C and 2% RH in temperature and humidity readings. The data is measured every 15 minutes. The battery life lasts up to 12 months.
The device is compact, so you can take it anywhere you go (50x50x25mm). You can configure it from your computer or smartphone using a web browser.